mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-12-26 21:24:12 +08:00
604 lines
15 KiB
C++
604 lines
15 KiB
C++
|
||
#include "MinHook.h"
|
||
extern WinMutex viewMutex;
|
||
|
||
// - Unnamed helpers -
|
||
|
||
namespace
|
||
{ // unnamed
|
||
#ifndef _WIN64
|
||
BYTE common_hook[] = {
|
||
0x9c, // pushfd
|
||
0x60, // pushad
|
||
0x9c, // pushfd ; Artikash 11/4/2018: not sure why pushfd happens twice. Anyway, after this a total of 0x28 bytes are pushed
|
||
0x8d, 0x44, 0x24, 0x28, // lea eax,[esp+0x28]
|
||
0x50, // push eax ; lpDatabase
|
||
0xb9, 0, 0, 0, 0, // mov ecx,@this
|
||
0xbb, 0, 0, 0, 0, // mov ebx,@TextHook::Send
|
||
0xff, 0xd3, // call ebx
|
||
0x9d, // popfd
|
||
0x61, // popad
|
||
0x9d, // popfd
|
||
0x68, 0, 0, 0, 0, // push @original
|
||
0xc3 // ret ; basically absolute jmp to @original
|
||
};
|
||
int this_offset = 9, send_offset = 14, original_offset = 24;
|
||
#else
|
||
BYTE common_hook[] = {
|
||
0x9c, // push rflags
|
||
0x50, // push rax
|
||
0x53, // push rbx
|
||
0x51, // push rcx
|
||
0x52, // push rdx
|
||
0x54, // push rsp
|
||
0x55, // push rbp
|
||
0x56, // push rsi
|
||
0x57, // push rdi
|
||
0x41, 0x50, // push r8
|
||
0x41, 0x51, // push r9
|
||
0x41, 0x52, // push r10
|
||
0x41, 0x53, // push r11
|
||
0x41, 0x54, // push r12
|
||
0x41, 0x55, // push r13
|
||
0x41, 0x56, // push r14
|
||
0x41, 0x57, // push r15
|
||
// https://docs.microsoft.com/en-us/cpp/build/x64-calling-convention
|
||
// https://stackoverflow.com/questions/43358429/save-value-of-xmm-registers
|
||
0x48, 0x83, 0xec, 0x20, // sub rsp,0x20
|
||
0xf3, 0x0f, 0x7f, 0x24, 0x24, // movdqu [rsp],xmm4
|
||
0xf3, 0x0f, 0x7f, 0x6c, 0x24, 0x10, // movdqu [rsp+0x10],xmm5
|
||
0x48, 0x8d, 0x94, 0x24, 0xa8, 0x00, 0x00, 0x00, // lea rdx,[rsp+0xa8]
|
||
0x48, 0xb9, 0, 0, 0, 0, 0, 0, 0, 0, // mov rcx,@this
|
||
0x48, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, // mov rax,@TextHook::Send
|
||
0x48, 0x89, 0xe3, // mov rbx,rsp
|
||
0x48, 0x83, 0xe4, 0xf0, // and rsp,0xfffffffffffffff0 ; align stack
|
||
0xff, 0xd0, // call rax
|
||
0x48, 0x89, 0xdc, // mov rsp,rbx
|
||
0xf3, 0x0f, 0x6f, 0x6c, 0x24, 0x10, // movdqu xmm5,XMMWORD PTR[rsp + 0x10]
|
||
0xf3, 0x0f, 0x6f, 0x24, 0x24, // movdqu xmm4,XMMWORD PTR[rsp]
|
||
0x48, 0x83, 0xc4, 0x20, // add rsp,0x20
|
||
0x41, 0x5f, // pop r15
|
||
0x41, 0x5e, // pop r14
|
||
0x41, 0x5d, // pop r13
|
||
0x41, 0x5c, // pop r12
|
||
0x41, 0x5b, // pop r11
|
||
0x41, 0x5a, // pop r10
|
||
0x41, 0x59, // pop r9
|
||
0x41, 0x58, // pop r8
|
||
0x5f, // pop rdi
|
||
0x5e, // pop rsi
|
||
0x5d, // pop rbp
|
||
0x5c, // pop rsp
|
||
0x5a, // pop rdx
|
||
0x59, // pop rcx
|
||
0x5b, // pop rbx
|
||
0x58, // pop rax
|
||
0x9d, // pop rflags
|
||
0xff, 0x25, 0x00, 0x00, 0x00, 0x00, // jmp qword ptr [rip]
|
||
0, 0, 0, 0, 0, 0, 0, 0 // @original
|
||
};
|
||
int this_offset = 50, send_offset = 60, original_offset = 126;
|
||
#endif
|
||
|
||
// thread_local BYTE buffer[PIPE_BUFFER_SIZE];
|
||
// thread_local will crush on windowsxp
|
||
} // unnamed namespace
|
||
|
||
// - TextHook methods -
|
||
|
||
uintptr_t getasbaddr(const HookParam &hp)
|
||
{
|
||
auto address = hp.address;
|
||
if (hp.type & MODULE_OFFSET)
|
||
{
|
||
if (hp.type & FUNCTION_OFFSET)
|
||
{
|
||
if (FARPROC function = GetProcAddress(GetModuleHandleW(hp.module), hp.function))
|
||
address += (uint64_t)function;
|
||
else
|
||
return ConsoleOutput(FUNC_MISSING), 0;
|
||
}
|
||
else
|
||
{
|
||
if (HMODULE moduleBase = GetModuleHandleW(hp.module))
|
||
address += (uint64_t)moduleBase;
|
||
else
|
||
return ConsoleOutput(MODULE_MISSING), 0;
|
||
}
|
||
}
|
||
return address;
|
||
}
|
||
bool TextHook::Insert(HookParam hp)
|
||
{
|
||
|
||
auto addr = getasbaddr(hp);
|
||
if (!addr)
|
||
return false;
|
||
|
||
RemoveHook(addr, 0);
|
||
ConsoleOutput(INSERTING_HOOK, hp.name, addr);
|
||
local_buffer = new BYTE[PIPE_BUFFER_SIZE];
|
||
{
|
||
std::scoped_lock lock(viewMutex);
|
||
this->hp = hp;
|
||
address = addr;
|
||
}
|
||
savetypeforremove = hp.type;
|
||
if (hp.type & DIRECT_READ)
|
||
return InsertReadCode();
|
||
if (hp.type & BREAK_POINT)
|
||
{
|
||
if (InsertBreakPoint())
|
||
return true;
|
||
if (safeautoleaveveh)
|
||
return InsertBreakPoint(); // 搜索特殊码后，不会释放，导致virtualprotect查询失败，重试。
|
||
return false;
|
||
}
|
||
return InsertHookCode();
|
||
}
|
||
uintptr_t win64find0000(uintptr_t addr)
|
||
{
|
||
uintptr_t r = 0;
|
||
__try
|
||
{
|
||
addr &= ~0xf;
|
||
for (uintptr_t i = addr, j = addr - 0x10000; i > j; i -= 0x10)
|
||
{
|
||
DWORD k = *(DWORD *)(i - 4);
|
||
if (k == 0x00000000)
|
||
return i;
|
||
}
|
||
return 0;
|
||
}
|
||
__except (EXCEPTION_EXECUTE_HANDLER)
|
||
{
|
||
}
|
||
return r;
|
||
}
|
||
Synchronized<std::unordered_map<uintptr_t, uintptr_t>> retaddr2relative; // 很奇怪，这个放到函数里用static在xp上会报错。
|
||
uintptr_t queryrelativeret(HookParam &hp, uintptr_t retaddr)
|
||
{
|
||
// 不需要区分是相对于哪个module的偏移，只需要得到偏移就可以了，用来确保重启程序后ret值恒定
|
||
auto &re = retaddr2relative.Acquire().contents;
|
||
if (re.find(retaddr) != re.end())
|
||
return re.at(retaddr);
|
||
uintptr_t relative = retaddr;
|
||
if (hp.jittype == JITTYPE::UNITY)
|
||
{
|
||
#ifndef _WIN64
|
||
relative = retaddr - SafeFindEnclosingAlignedFunction(retaddr, 0x10000);
|
||
#else
|
||
relative = retaddr - win64find0000(retaddr);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
if (MEMORY_BASIC_INFORMATION info = {}; VirtualQuery((LPCVOID)retaddr, &info, sizeof(info)))
|
||
relative -= (uintptr_t)info.AllocationBase;
|
||
}
|
||
re.insert(std::make_pair(retaddr, relative));
|
||
return relative;
|
||
}
|
||
|
||
uintptr_t jitgetaddr(hook_stack *stack, HookParam *hp)
|
||
{
|
||
switch (hp->jittype)
|
||
{
|
||
#ifdef _WIN64
|
||
case JITTYPE::RPCS3:
|
||
return RPCS3::emu_arg(stack)[hp->argidx];
|
||
case JITTYPE::VITA3K:
|
||
return VITA3K::emu_arg(stack)[hp->argidx];
|
||
case JITTYPE::YUZU:
|
||
return YUZU::emu_arg(stack, hp->emu_addr)[hp->argidx];
|
||
#endif
|
||
case JITTYPE::PPSSPP:
|
||
return PPSSPP::emu_arg(stack)[hp->argidx];
|
||
default:
|
||
return 0;
|
||
}
|
||
}
|
||
bool checklengthembedable(const HookParam &hp, size_t size)
|
||
{
|
||
size_t len;
|
||
if (hp.type & CODEC_UTF16)
|
||
len = 2;
|
||
else if (hp.type & CODEC_UTF32)
|
||
len = 4;
|
||
else
|
||
{
|
||
len = 2;
|
||
}
|
||
return size > len;
|
||
}
|
||
bool commonfilter(void *data, size_t *len, HookParam *hp)
|
||
{
|
||
|
||
if (hp->type & CODEC_UTF16)
|
||
;
|
||
else if (hp->type & CODEC_UTF32)
|
||
;
|
||
else if (hp->type & CODEC_UTF8)
|
||
;
|
||
else
|
||
{
|
||
if (*len == 2)
|
||
{
|
||
StringFilter((char *)data, len, "\x81\xa4", 2);
|
||
StringFilter((char *)data, len, "\x81\xa5", 2);
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
void TextHook::Send(uintptr_t lpDataBase)
|
||
{
|
||
auto buffer = (TextOutput_T *)local_buffer;
|
||
auto pbData = buffer->data;
|
||
_InterlockedIncrement((long *)&useCount);
|
||
__try
|
||
{
|
||
auto stack = get_hook_stack(lpDataBase);
|
||
|
||
if (auto current_trigger_fun = trigger_fun.exchange(nullptr))
|
||
if (!current_trigger_fun(location, stack))
|
||
trigger_fun = current_trigger_fun;
|
||
|
||
if (hp.type & HOOK_RETURN)
|
||
{
|
||
hp.type &= ~HOOK_RETURN;
|
||
hp.address = stack->retaddr;
|
||
strcat(hp.name, "_Return");
|
||
// 清除jit hook特征，防止手动插入
|
||
strcpy(hp.unityfunctioninfo, "");
|
||
hp.emu_addr = 0;
|
||
// 清除module
|
||
hp.type &= ~MODULE_OFFSET;
|
||
hp.type &= ~FUNCTION_OFFSET;
|
||
strcpy(hp.function, "");
|
||
wcscpy(hp.module, L"");
|
||
|
||
NewHook(hp, hp.name);
|
||
hp.type |= HOOK_EMPTY;
|
||
__leave;
|
||
}
|
||
if (hp.type & HOOK_EMPTY)
|
||
__leave; // jichi 10/24/2014: dummy hook only for dynamic hook
|
||
|
||
size_t lpCount = 0;
|
||
uintptr_t lpSplit = 0,
|
||
lpRetn = stack->retaddr,
|
||
plpdatain = (lpDataBase + hp.offset),
|
||
lpDataIn = *(uintptr_t *)plpdatain;
|
||
bool isstring = false;
|
||
if (hp.jittype != JITTYPE::PC && hp.jittype != JITTYPE::UNITY)
|
||
{
|
||
lpDataIn = jitgetaddr(stack, &hp);
|
||
plpdatain = (uintptr_t)&lpDataIn;
|
||
}
|
||
else if (hp.jittype == JITTYPE::UNITY)
|
||
{
|
||
plpdatain = (uintptr_t)argidx(stack, hp.argidx);
|
||
lpDataIn = *(uintptr_t *)plpdatain;
|
||
}
|
||
|
||
auto use_custom_embed_fun = (hp.type & EMBED_ABLE) && !(hp.type & EMBED_BEFORE_SIMPLE);
|
||
if (use_custom_embed_fun)
|
||
{
|
||
isstring = true;
|
||
lpSplit = Engine::ScenarioRole;
|
||
lpRetn = 0;
|
||
if (hp.hook_before(stack, pbData, &lpCount, &lpSplit) == false)
|
||
__leave;
|
||
}
|
||
else if (hp.text_fun)
|
||
{
|
||
isstring = true;
|
||
hp.text_fun(stack, &hp, &lpDataIn, &lpSplit, &lpCount);
|
||
}
|
||
else if (hp.type & SPECIAL_JIT_STRING)
|
||
{
|
||
if (hp.jittype == JITTYPE::UNITY)
|
||
commonsolvemonostring(lpDataIn, &lpDataIn, &lpCount);
|
||
}
|
||
else
|
||
{
|
||
if (hp.type & FIXING_SPLIT)
|
||
lpSplit = FIXED_SPLIT_VALUE; // fuse all threads, and prevent floating
|
||
else if (hp.type & USING_SPLIT)
|
||
{
|
||
lpSplit = *(uintptr_t *)(lpDataBase + hp.split);
|
||
if (hp.type & SPLIT_INDIRECT)
|
||
lpSplit = *(uintptr_t *)(lpSplit + hp.split_index);
|
||
}
|
||
if (hp.type & DATA_INDIRECT)
|
||
{
|
||
plpdatain = (lpDataIn + hp.index);
|
||
lpDataIn = *(uintptr_t *)plpdatain;
|
||
}
|
||
lpDataIn += hp.padding;
|
||
lpCount = GetLength(stack, lpDataIn);
|
||
}
|
||
|
||
if (lpCount <= 0)
|
||
__leave;
|
||
if (lpCount > TEXT_BUFFER_SIZE)
|
||
{
|
||
ConsoleOutput(InvalidLength, lpCount, hp.name);
|
||
lpCount = TEXT_BUFFER_SIZE;
|
||
}
|
||
|
||
if (!use_custom_embed_fun)
|
||
{
|
||
if ((!(hp.type & USING_CHAR)) && (isstring || (hp.type & USING_STRING)))
|
||
{
|
||
if (lpDataIn == 0)
|
||
__leave;
|
||
::memcpy(pbData, (void *)lpDataIn, lpCount);
|
||
}
|
||
else
|
||
{
|
||
if (hp.type & CODEC_UTF32)
|
||
{
|
||
*(uint32_t *)pbData = lpDataIn & 0xffffffff;
|
||
}
|
||
else
|
||
{ // CHAR_LITTEL_ENDIAN,CODEC_ANSI_BE,CODEC_UTF16
|
||
lpDataIn &= 0xffff;
|
||
if ((hp.type & CODEC_ANSI_BE) && (lpDataIn >> 8))
|
||
lpDataIn = _byteswap_ushort(lpDataIn & 0xffff);
|
||
if (lpCount == 1)
|
||
lpDataIn &= 0xff;
|
||
*(WORD *)pbData = lpDataIn & 0xffff;
|
||
}
|
||
}
|
||
}
|
||
if (!commonfilter(pbData, &lpCount, &hp) || lpCount <= 0)
|
||
__leave;
|
||
if (hp.filter_fun && !hp.filter_fun(pbData, &lpCount, &hp) || lpCount <= 0)
|
||
__leave;
|
||
|
||
if (hp.type & (NO_CONTEXT | FIXING_SPLIT))
|
||
lpRetn = 0;
|
||
|
||
buffer->type = hp.type;
|
||
|
||
lpRetn = queryrelativeret(hp, lpRetn);
|
||
ThreadParam tp{GetCurrentProcessId(), address, lpRetn, lpSplit};
|
||
|
||
parsenewlineseperator(pbData, &lpCount);
|
||
|
||
bool canembed;
|
||
if (hp.type & EMBED_ABLE)
|
||
{
|
||
if (!checklengthembedable(hp, lpCount))
|
||
{
|
||
buffer->type &= (~EMBED_ABLE);
|
||
canembed = false;
|
||
}
|
||
else if (checktranslatedok(pbData, lpCount))
|
||
{
|
||
buffer->type &= (~EMBED_ABLE);
|
||
canembed = true;
|
||
}
|
||
else
|
||
{
|
||
canembed = true;
|
||
}
|
||
}
|
||
|
||
TextOutput(tp, hp, buffer, lpCount);
|
||
|
||
if (canembed && (check_embed_able(tp)))
|
||
{
|
||
auto lpCountsave = lpCount;
|
||
if (waitfornotify(buffer, pbData, &lpCount, tp))
|
||
{
|
||
if (hp.type & EMBED_AFTER_NEW)
|
||
{
|
||
auto _ = new char[max(lpCountsave, lpCount) + 10];
|
||
memcpy(_, pbData, lpCount);
|
||
for (int i = lpCount; i < max(lpCountsave, lpCount) + 10; i++)
|
||
_[i] = 0;
|
||
*(uintptr_t *)plpdatain = (uintptr_t)_;
|
||
}
|
||
else if (hp.type & EMBED_AFTER_OVERWRITE)
|
||
{
|
||
memcpy((void *)lpDataIn, pbData, lpCount);
|
||
for (int i = lpCount; i < lpCountsave; i++)
|
||
((BYTE *)(lpDataIn))[i] = 0;
|
||
}
|
||
else if (hp.hook_after)
|
||
hp.hook_after(stack, pbData, lpCount);
|
||
else if (hp.type & SPECIAL_JIT_STRING)
|
||
{
|
||
if (hp.jittype == JITTYPE::UNITY)
|
||
unity_ui_string_hook_after(argidx(stack, hp.argidx), pbData, lpCount);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
__except (EXCEPTION_EXECUTE_HANDLER)
|
||
{
|
||
if (!err && !(hp.type & KNOWN_UNSTABLE))
|
||
{
|
||
err = true;
|
||
ConsoleOutput(SEND_ERROR, hp.name);
|
||
}
|
||
}
|
||
|
||
_InterlockedDecrement((long *)&useCount);
|
||
}
|
||
bool TextHook::breakpointcontext(PCONTEXT context)
|
||
{
|
||
auto stack = std::make_unique<hook_stack>();
|
||
context_get(stack.get(), context);
|
||
auto lpDataBase = stack->get_base();
|
||
Send(lpDataBase);
|
||
context_set(stack.get(), context);
|
||
return true;
|
||
}
|
||
bool TextHook::InsertBreakPoint()
|
||
{
|
||
// MH_CreateHook 64位unity/yuzu-emu经常 MH_ERROR_MEMORY_ALLOC
|
||
return add_veh_hook(location, std::bind(&TextHook::breakpointcontext, this, std::placeholders::_1));
|
||
}
|
||
bool TextHook::RemoveBreakPoint()
|
||
{
|
||
return remove_veh_hook(location);
|
||
}
|
||
bool TextHook::InsertHookCode()
|
||
{
|
||
|
||
VirtualProtect(location, 10, PAGE_EXECUTE_READWRITE, DUMMY);
|
||
void *original;
|
||
MH_STATUS error;
|
||
while ((error = MH_CreateHook(location, trampoline, &original)) != MH_OK)
|
||
if (error == MH_ERROR_ALREADY_CREATED)
|
||
RemoveHook(address);
|
||
else
|
||
return ConsoleOutput(MH_StatusToString(error)), false;
|
||
|
||
*(TextHook **)(common_hook + this_offset) = this;
|
||
*(void(TextHook::**)(uintptr_t))(common_hook + send_offset) = &TextHook::Send;
|
||
*(void **)(common_hook + original_offset) = original;
|
||
memcpy(trampoline, common_hook, sizeof(common_hook));
|
||
return MH_EnableHook(location) == MH_OK;
|
||
}
|
||
|
||
void TextHook::Read()
|
||
{
|
||
size_t dataLen = 1;
|
||
// BYTE(*buffer)[PIPE_BUFFER_SIZE] = &::buffer, *pbData = *buffer + sizeof(ThreadParam);
|
||
|
||
auto buffer = (TextOutput_T *)local_buffer;
|
||
auto pbData = buffer->data;
|
||
buffer->type = hp.type;
|
||
__try
|
||
{
|
||
if (hp.text_fun)
|
||
{
|
||
while (WaitForSingleObject(readerEvent, 500) == WAIT_TIMEOUT)
|
||
hp.text_fun(0, 0, 0, 0, 0);
|
||
}
|
||
else
|
||
{
|
||
while (WaitForSingleObject(readerEvent, 500) == WAIT_TIMEOUT)
|
||
{
|
||
if (!location)
|
||
continue;
|
||
int currentLen = HookStrlen((BYTE *)location);
|
||
bool changed = memcmp(pbData, location, dataLen) != 0;
|
||
if (changed || (currentLen != dataLen))
|
||
{
|
||
dataLen = min(currentLen, TEXT_BUFFER_SIZE);
|
||
memcpy(pbData, location, dataLen);
|
||
if (hp.filter_fun && !hp.filter_fun(pbData, &dataLen, &hp) || dataLen <= 0)
|
||
continue;
|
||
TextOutput({GetCurrentProcessId(), address, 0, 0}, hp, buffer, dataLen);
|
||
dataLen = min(currentLen, TEXT_BUFFER_SIZE);
|
||
memcpy(pbData, location, dataLen);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
__except (EXCEPTION_EXECUTE_HANDLER)
|
||
{
|
||
ConsoleOutput(READ_ERROR, hp.name);
|
||
Clear();
|
||
}
|
||
}
|
||
|
||
bool TextHook::InsertReadCode()
|
||
{
|
||
readerThread = CreateThread(nullptr, 0, [](void *This)
|
||
{ ((TextHook*)This)->Read(); return 0UL; }, this, 0, nullptr);
|
||
readerEvent = CreateEventW(nullptr, FALSE, FALSE, NULL);
|
||
return true;
|
||
}
|
||
|
||
void TextHook::RemoveHookCode()
|
||
{
|
||
MH_DisableHook(location);
|
||
while (useCount != 0)
|
||
;
|
||
MH_RemoveHook(location);
|
||
}
|
||
|
||
void TextHook::RemoveReadCode()
|
||
{
|
||
SetEvent(readerEvent);
|
||
if (GetThreadId(readerThread) != GetCurrentThreadId())
|
||
WaitForSingleObject(readerThread, 1000);
|
||
CloseHandle(readerEvent);
|
||
CloseHandle(readerThread);
|
||
}
|
||
|
||
void TextHook::Clear()
|
||
{
|
||
if (address == 0)
|
||
return;
|
||
if (savetypeforremove & DIRECT_READ)
|
||
RemoveReadCode();
|
||
else if (savetypeforremove & BREAK_POINT)
|
||
RemoveBreakPoint();
|
||
else
|
||
RemoveHookCode();
|
||
NotifyHookRemove(address, hp.name);
|
||
std::scoped_lock lock(viewMutex);
|
||
memset(&hp, 0, sizeof(HookParam));
|
||
address = 0;
|
||
if (local_buffer)
|
||
delete[] local_buffer;
|
||
}
|
||
|
||
int TextHook::GetLength(hook_stack *stack, uintptr_t in)
|
||
{
|
||
int len;
|
||
if (hp.type & USING_STRING)
|
||
{
|
||
if (hp.length_offset)
|
||
{
|
||
len = *((uintptr_t *)stack->base + hp.length_offset);
|
||
if (len >= 0)
|
||
{
|
||
if (hp.type & CODEC_UTF16)
|
||
len <<= 1;
|
||
else if (hp.type & CODEC_UTF32)
|
||
len <<= 2;
|
||
}
|
||
else if (len != -1)
|
||
{
|
||
}
|
||
else
|
||
{ // len==-1
|
||
len = HookStrlen((BYTE *)in);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
len = HookStrlen((BYTE *)in);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (hp.type & CODEC_UTF16)
|
||
len = 2;
|
||
else if (hp.type & CODEC_UTF32)
|
||
len = 4;
|
||
else
|
||
{ // CODEC_ANSI_BE,CHAR_LITTLE_ENDIAN
|
||
if (hp.type & CODEC_ANSI_BE)
|
||
in >>= 8;
|
||
len = !!IsDBCSLeadByteEx(hp.codepage, in & 0xff) + 1;
|
||
}
|
||
}
|
||
return max(0, len);
|
||
}
|
||
|
||
int TextHook::HookStrlen(BYTE *data)
|
||
{
|
||
return HookStrLen(&hp, data);
|
||
}
|
||
|
||
// EOF
|